1. Computers
  2. Display Drivers
  3. Graphics Cards
  4. Memory
  5. Motherboards
  6. Processors
  7. Software
  8. Storage
  9. Operating Systems


Facebook RSS Twitter Twitter Google Plus


Phoronix Test Suite

OpenBenchmarking Benchmarking Platform
Phoromatic Test Orchestration

Gallium3D UBO/TBO Support Emerges - More GL 3.x

Mesa

Published on 06 December 2012 09:29 AM EST
Written by Michael Larabel in Mesa
Comment On This Article

In addition to pushing OpenGL transform feedback for Gallium3D's LLVMpipe, David Airlie has released a new patch-set for Uniform Buffer Objects (UBOs) and Texture Buffer Objects (TBOs) within Mesa's Gallium3D infrastructure.

In the early hours of this morning, Airlie released a set of six patches under a "request for comments" state that implements UBO and TBO support. While the work touches some common Gallium3D code like the Mesa state tracker, right now the newly enabled-features are only properly working for Softpipe -- the slow Gallium3D software rasterizer that's a reference driver implementation and even slower than LLVMpipe.

Beyond the Softpipe support, Airlie has written an "initial hack" for TBO support within the R600 Gallium3D driver but hasn't yet attempted Uniform Buffer Objects on this Radeon Gallium3D driver nor Nouveau. Texture Buffer Objects were added to the core specification with OpenGL 3.0 and is a 1D texture backed by a buffer object. Uniform Buffer Objects are buffer objects storing uniform data and have been part of the specification since OpenGL 3.1.

With the newly-enabled support, the Gallium3D Softpipe driver has also been adjusted to advertise GLSL 1.40 compliance. Version 1.40 of the GL Shading Language is the version to match OpenGL 3.1.

Uniform Buffer Object support within Mesa itself has been worked on for over one year and revised since that point.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
Latest Articles & Reviews
  1. GeForce GTX 750 Series: Nouveau vs. NVIDIA Linux Driver Performance
  2. GLAMOR + RadeonSI 2D Acceleration Is Quite Good For Open-Source AMD 2D Performance
  3. AMD Radeon R9 290 OpenGL On Ubuntu 15.04: Catalyst vs. RadeonSI Gallium3D
  4. Ubuntu 15.04 Offers Faster OpenGL For AMD Radeon GPUs On Open-Source
  5. Ubuntu 15.04 Brings Some Graphics Performance Improvements For Intel Haswell
  6. Sub-$20 802.11n USB WiFi Adapter That's Linux Friendly
Latest Linux News
  1. Libinput 0.15 Adds New Debug Events Utility
  2. Qt 5.5 Beta Is Coming Soon, Snapshot Released
  3. Steam Linux Usage Drops Below 1%
  4. Many OpenGL ES 3.1 Commits Land In Mesa
  5. HHVM 3.7 Brings More Performance Improvements
  6. Experimental DragonFlyBSD Code Adds Broadwell Graphics
  7. Virt-Manager 1.2.0 Brings OVMF/AAVMF Support For UEFI In VMs
  8. Interesting GSoC 2015 Projects: Wine D3DRM, GameStream, NaCL Fun
  9. An Ubuntu Phone Will Ship This Year With The Converged Unity Experience
  10. Ubuntu 15.10 Is Codenamed The Wily Werewolf
Most Viewed News This Week
  1. Trying Out Microsoft Visual Studio Code On Linux
  2. Microsoft Releases New Code IDE For Linux!
  3. Improvements On The Way For GNOME's Nautilus File Manager
  4. A Lot Of Improvements Are Coming For Mir 0.13, Including Work Towards Libinput
  5. Kodi 15.0 Beta 1 Released
  6. Mono 4.0 Makes Use Of Microsoft's Open-Source Code, C# 6.0
  7. Wayland 1.8 Alpha Release Delayed
  8. Lucid Sleep Support Is Being Worked On For The Upstream Linux Kernel